Calponin in non-muscle cells.
Calponin is an actin filament-associated regulatory protein expressed in smooth muscle and non-muscle cells. Calponin is an inhibitor of the actin-activated myosin ATPase. Three isoforms of calponin have been found in the vertebrates. Whereas the role of calponin in regulating smooth muscle contractility has been extensively investigated, the function and regulation of calponin in non-muscle cells is much less understood. Based on recent progresses in the field, this review focuses on the studies of calponin in non-muscle cells, especially its regulation by cytoskeleton tension and function in cell motility. The ongoing research has demonstrated that calponin plays a regulatory role in non-muscle cell motility. Therefore, non-muscle calponin is an attractive target for the control of cell proliferation, migration and phagocytosis, and the treatment of cancer metastasis.
Wu
Kai-Chun
KC
Section of Molecular Cardiology, Evanston Northwestern Healthcare, Northwestern University Feinberg School of Medicine, Evanston, IL 60201, USA.
Jin
J-P
JP
D000199:Actins / Q000378:metabolism; D000595:Amino Acid Sequence; D000818:Animals; D002135:Calcium-Binding Proteins / Q000145:classification / Q000235:genetics / Q000378:metabolism*; D002465:Cell Movement; D003599:Cytoskeleton / Q000502:physiology*; D006801:Humans; D008840:Microfilament Proteins / Q000145:classification / Q000235:genetics / Q000378:metabolism*; D008969:Molecular Sequence Data; D032342:Muscle Cells / Q000201:enzymology; D009130:Muscle, Smooth / Q000201:enzymology; D009218:Myosins / Q000378:metabolism; D010802:Phylogeny; D020033:Protein Isoforms; D013329:Structure-Activity Relationship; D000096985:Calponins
D000199:Actins; D002135:Calcium-Binding Proteins; D008840:Microfilament Proteins; D009218:Myosins; D020033:Protein Isoforms; D000096985:Calponins